WO2011014900A1 - Coude tubulaire flexible pour un chalumeau soudeur comprenant un bras de réglage conçu comme séparation mécanique; chalumeau soudeur avec un coude tubulaire flexible de ce type - Google Patents

Coude tubulaire flexible pour un chalumeau soudeur comprenant un bras de réglage conçu comme séparation mécanique; chalumeau soudeur avec un coude tubulaire flexible de ce type Download PDF

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Publication number
WO2011014900A1
WO2011014900A1 PCT/AT2010/000287 AT2010000287W WO2011014900A1 WO 2011014900 A1 WO2011014900 A1 WO 2011014900A1 AT 2010000287 W AT2010000287 W AT 2010000287W WO 2011014900 A1 WO2011014900 A1 WO 2011014900A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe bend
welding
welding torch
flexible pipe
power cable
Prior art date
Application number
PCT/AT2010/000287
Other languages
German (de)
English (en)
Inventor
Manfred Hubinger
Josef Leeb
Alexander STÖGER
Original Assignee
Fronius International Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fronius International Gmbh filed Critical Fronius International Gmbh
Priority to DE212010000057U priority Critical patent/DE212010000057U1/de
Publication of WO2011014900A1 publication Critical patent/WO2011014900A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
    • B23K9/295—Supporting devices adapted for making use of shielding means the shielding means being a gas using consumable electrode-wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/323—Combined coupling means, e.g. gas, electricity, water or the like

Definitions

  • the invention relates to a flexible pipe bend for a welding torch, in which at one end a nozzle for receiving a contact tube and a gas nozzle at the other opposite end a central terminal for fixing the pipe bend is arranged on a burner holder, wherein the two ends via a flexible connecting element are interconnected and a welding torch, as described in the preambles of claim 1.
  • the invention relates to a welding torch, comprising a burner holder, in particular a burner handle, and a pipe bend attached thereto, wherein the pipe bend, a flexible connecting element, on which a nozzle for receiving a contact tube and a gas nozzle is attached, as in the preamble of claim 8 is described.
  • a flexible contact tube in particular a connecting element, for a welding torch is known.
  • the flexible contact tube know a nozzle and at the opposite end to a central terminal, which are connected to each other via a plurality of individually juxtaposed connectors.
  • the connecting pieces have on the one hand a ball joint and on the other hand, a fastening element in the form of a thread, so that the individual connecting pieces can be connected together.
  • a ball joint now the individual connectors can be rotated against each other in all directions.
  • a continuous bore is provided, so that a welding wire can be conveyed through the interconnected connecting pieces.
  • a wire core is preferably positioned up to the nozzle, in which then the welding wire is guided.
  • the connecting pieces are formed from an electrically conductive material, since this is done via the individual connecting pieces for the power supply to the nozzle. So that the user is protected from the live parts, ie the connecting pieces, a continuous protective tube is arranged above the connecting pieces.
  • the disadvantage hereby is that no frictionless power transmission through the individual connectors is possible, since worn ball joints can cause air gaps between which can deposit fine dirt. Furthermore, it can happen that an arc can form in such air gaps and thus lead to melting of the base material, which usually creates a weld between two connectors and then these two connectors can not be rotated against each other.
  • the object of the invention is to provide a flexible pipe bend and a welding torch, in which a secure power transmission and adjustment mechanism is provided.
  • the connecting element is designed such that a mechanical separation for stability and power transmission is present, in which an actuating arm for stable positioning of the arc components, in particular a welding wire or an electrode, is arranged around which a highly flexible power cable is laid.
  • a very secure power transmission is achieved by using a power cable between the central terminal and the nozzle. This also ensures that the power cable is protected by embedding the power cable inside the rubber hose and at the same time an adjustment via the actuator arm possible. is.
  • Another advantage is that the manufacturing costs can be kept low by the layered structure. The advantage is that a high number of bending without damaging the components is achieved because components are used, which are already used for many years in practice in other areas.
  • Another advantage is that the coaxial layer structure, ie the separation of the mechanical
  • Adjustment and the electric current a very small mass can be achieved.
  • burner bodies of above-average length can be manufactured, the mechanical stability being maintained.
  • the burner body has no tension after positioning.
  • Schwannenhalses as an actuating arm is achieved in an advantageous manner that a corresponding bending radius is specified for the actuator, so that a buckling is prevented.
  • the user can not choose a too narrow radius, which could cause problems in the welding wire conveying.
  • the advantage is that the actuator arm carries only the mechanics and the additionally mounted highly flexible power cable, which is mounted under bias, due to the excess length used, is thus protected against damage.
  • a protective hose in particular a rubber hose
  • the adjusting force for the actuating arm can be influenced, that is to say that a thicker protective tube requires a higher adjusting force.
  • the actuating arm for receiving a wire core and / or the welding wire or an electrode is formed and preferably further for a Welding process required elements, such as the protective gas, are performed within the actuator arm, as this protection, in particular a kink protection, the component is made possible via the actuator arm in a simple manner.
  • Another advantage is that the individual elements, in particular the power cable and the actuator arm, are clamped or soldered to the nozzle and the central terminal, so that a secure connection is created and beyond a good power transition between the individual elements is achieved.
  • the power cable is formed from a mesh of high-strength and flexible individual Lizen and the Lizen preferably made of the material copper, as a result a high life at very high bending rate of the connecting element is achieved.
  • a Ausgestallten in which at least a portion of the nozzle and the central terminal is formed of an electrically conductive material for power transmission, is achieved in an advantageous manner that the power cable can be connected directly to the central terminal and the nozzle, so ev. Contact error by several joints are reduced. Thus, a compact construction is achieved.
  • Another advantage is a form in which the actuator arm made of steel and / or brass is formed, as this sufficient stability can be ensured.
  • the power cable is formed from a plurality of superimposed layers, in particular from three layers of a shielding braid, and that the power cable preferably has individual strands with a diameter of 0.1 mm, since a high degree of flexibility is thereby achieved and at the same time sufficient cross-section for the current is present.
  • each layer can be made with very thin wires and thus at the same time is highly flexible.
  • the object of the invention for a welding torch is achieved in such a way that a mechanical separation for stability and power transmission is present, in which an actuating arm for stable positioning of the arc components, in particular a welding wire or an electrode, is arranged around which a highly flexible Power cable is laid.
  • the advantage here is that the welder adjust inaccurate welds correspond to the pipe bend, in particular can bend to the right, whereby the implementation of the welding process for the welder is simplified. This means that the welder can retain his usual welding position, ie the holding of the welding torch, and still achieve the widest variety of hard-to-reach welds. This also ensures that the quality of welding remains upright.
  • Fig. 1 is a schematic representation of a welding machine or a welding device
  • Fig. 2 is a schematic representation of an exemplary embodiment of a pipe bend
  • Fig. 3 is a sectional view of the pipe bend, in a simplified, schematic representation.
  • a welding apparatus 1 or a welding system for a variety of processes or processes, such. MIG / MAG welding or TIG / TIG welding or electrode welding, double wire / tandem welding, plasma or soldering, etc., shown.
  • the welding device 1 comprises a power source 2 with a power unit 3, a control device 4 and other components and lines, not shown, such as a switching element, control valves, etc.
  • the control device 4 is connected, for example, to a control valve which is located in a supply line for a gas 5, in particular a protective gas, such as CO 2, helium or argon and the like.
  • a gas storage 6 and a welding torch 7 and a burner is arranged.
  • a wire feeder 8 which is customary for MIG / MAG welding, can be actuated via the control device 4, wherein a filler material or a welding wire 9 from a supply drum 10 or a wire reel into the area of the welding torch 7 via a supply line is supplied.
  • the wire feeder 8 in the welding device 1, in particular in the housing 11 of the power source 2, is integrated and not, as shown in Fig. 1, as an additional device to a carriage 12th is positioned.
  • the wire feeder 8 can be placed directly on the welder 2, that is, that the housing 11 of the power source 2 is formed on the top for receiving the wire feeder 8, so that the carriage 12 can be omitted.
  • the wire feed device 8 may supply the welding wire 9 or the additional material outside the welding torch 7 to the processing station, for which purpose a non-consumable electrode is preferably arranged in the welding torch 7, as is usual in TIG / TIG welding.
  • the current for constructing an arc 13, in particular a working arc, between the electrode or the welding wire 9 and a workpiece 14 preferably formed from one or more parts is from a power line 3, not shown, from the power source 2, the welding torch 7, in particular the electrode or the welding wire 9, supplied, wherein the workpiece to be welded 14 via a further welding line for the further potential, in particular the ground cable, with the power source 2, not shown, is connected, and thus via the arc 13 and
  • the formed plasma jet for a process can be built a circuit.
  • the two welding lines, not shown led to the burner, so that in the burner, a corresponding circuit can be constructed, as can be the case with plasma torch.
  • the welding torch 7 can be connected via a cooling device 15 with interposition ev.
  • Components such as a flow switch, with a liquid container, in particular a water tank 16 with a level indicator 17, whereby during commissioning of the welding torch 7 of the cooling device 15, in particular a liquid pump used for the liquid arranged in the water tank 16, is started, and thus a cooling of the welding torch 7 can be effected.
  • the cooling device 15 is positioned on the carriage 12, on which then the power source 2 is placed.
  • the individual components of the welding system, that is, the current source 2, the wire feed device 8 and the cooling device 15, are designed such that they have corresponding projections or recesses, so that they can be safely stacked on each other or placed on each other.
  • the welding device 1, in particular the current source 2, further has an input and / or output device 18, via which the most varied welding parameters, operating modes or welding programs of the welding device 1 can be set or called up and displayed.
  • the welding parameters, operating modes or welding programs set via the input and / or output device 18 are forwarded to the control device 4 and from this the individual components of the welding system or the welding device 1 are subsequently controlled or corresponding setpoint values for the regulation or control are specified.
  • the welding torch 7 is preferably connected via a data bus, in particular a serial data bus, to the welding device 1, in particular the current source 2 or the wire feed device 8.
  • the welding torch 7 usually has a start switch, not shown, so that the arc 13 can be ignited by actuating the start switch.
  • the welding torch 7 is equipped with a heat shield 20.
  • the welding torch 7 via a
  • Hose package 21 is connected to the welding device 1 or the welding system, wherein the hose package 21 is attached via a bend protection 22 on the welding torch 7.
  • the individual lines such as the supply line or lines for the welding wire 9, for the gas 5, for the cooling circuit, for the data transmission, etc., arranged from the welding machine 1 to the welding torch 7, whereas the ground cable is preferably connected to the power source 2 separately.
  • the hose assembly 21 is connected via a coupling device, not shown, to the power source 2 or the wire feeder 8, whereas the individual lines are secured in the hose assembly 21 with a kink protection on or in the welding torch 7.
  • the hose assembly 21 via a strain relief device, not shown, with the housing 11 of the power source 2 o- the wire feeder 8 may be connected. Basically, it should be mentioned that for the different welding processes or
  • the welding torch 7 can be designed as an air-cooled welding torch 7, so that, for example, the cooling device 15 can be dispensed with.
  • the welding device 1 is formed at least by the current source 2, the wire feed device 8 and the cooling device 15, wherein this can also be arranged in a common housing 11.
  • even more parts or components such as a grinding guard 23 on the wire feeder 8 or an option carrier 24 can be arranged or used on a holding device 25 for the gas storage 6, etc.
  • a flexible pipe bend 29 is shown for a welding torch 7, in which at one end a nozzle 30 for receiving a contact tube 31 and at the other opposite end a central terminal 32 for securing the pipe bend 29 to a burner holder (not shown ), wherein the two ends are connected to each other via a flexible connecting element 33.
  • Components such as a gas nozzle 34, union nut 35 or the like, can be mounted or arranged on the nozzle 30 or the central terminal 32. It is possible that in the nozzle 30, a threaded piece 36 is arranged.
  • the GE- Winding piece 36 is preferably releasably fastened to the nozzle via a screw connection and serves to receive the contact tube 31. It is possible for contact tubes 31, which are now fastened via a plug connection, to be used instead of screwed contact tubes 31, since a corresponding fastening device is arranged in threaded piece 36 is, that is, first the threaded portion 36 is connected to the nozzle 30, whereupon subsequently the contact tube 30 is inserted.
  • a splash guard 37 is preferably used in order to protect the threaded piece 36 from the welding spatter entering the gas nozzle 34 so that gluing or welding of the threaded piece 36 to another component is prevented and thus ensured that the threaded piece 36 is replaced at all times can be.
  • the curvature of the pipe bend 29 can be adjusted as desired, so that an optimal adaptation of the nozzle 30, in particular from the contact tube 31 emerging welding wire 9, can be made to a welding task.
  • an optimal adaptation of the nozzle 30, in particular from the contact tube 31 emerging welding wire 9 can be made to a welding task.
  • the user can easily bend the pipe bend 29 to the right.
  • the connecting element 33 is for example designed such that a mechanical separation for stability and power transmission is present, in which an actuating arm for stable positioning of the arc components, in particular a
  • welding wire 9 or an electrode, (not shown) is arranged around which a highly flexible power cable 39 is laid.
  • the actuator arm 38 is also designed to accommodate a wire core and / or the welding wire 9 or for a TIG / TIG torch for receiving a non-consumable electrode, preferably further required for a welding process elements, such as the inert gas, within the actuating arm 38 is guided.
  • the actuator arm 38 and the power cable 39 are doing on the side of the nozzle block 30 with an extension 40 of a dome 41, wherein in the mandrel 41, the threaded portion 36 is fixed.
  • On the side of the central terminal 32 of the actuator arm 38 and the power cable 39 is in turn secured by an extension 42 of a flange 43.
  • the attachment can be done for example via a ferrule 44, but any other type of fastening gene, such as, terminals, rivets, welding, soldering, gluing, etc. can be used.
  • the individual parts in particular the extensions 40, 42, the mandrel 41, the flange 43 and the threaded portion 36, have in the center an opening or bore 45, which with a arranged to guide a wire core flexible guide tube or the wire core directly (not shown) corresponds, so that the Drumbletseele can be pushed to the nozzle 30, in particular into the threaded portion 36.
  • the guide tube or the bore 45 in the form of the wire core so the inner diameter of the wire core for guiding the welding wire 9, is formed so that the inserted into the hose package wire core ends at the central terminal 32 and the welding wire 9 from there, Thus, the central terminal 32, passes directly into the guide tube or the bore 45.
  • some components in particular the flange 43, the mandrel 41 and the threaded piece 36, of the tube bend 29 are made of electrically conductive material.
  • an insulating ring 46 are arranged on the threaded piece 36, to which a cone 47 and / or an insulating bushing 48 connects.
  • the power cable 39 and at least a portion of the flange 43 is electrically insulated by a protective tube 49, that is, that for isolation and for the gas tightness over the actuator arm 38 and the power cable 39 of Protective tube 49, in particular a rubber hose, is arranged.
  • a CU braid is used with a cross section of 3x25 mm 2 , which is similar to a braided shield Leoni from the prior art.
  • the used CU braid is highly flexible and specially knitted.
  • the Ablegeflecht on between 5 to 10% greater length than your distance 50 between the nozzle 30 and the central terminal 32. This ensures that when assembling the Ablegeflmüs this is pushed together, so that loosen up the braid or the individual licenses and thus achieved that the adjustment process with little effort is possible and at the same time a long life is achieved.
  • the power cable 39 is formed from a mesh of high-strength and flexible individual lices, wherein the lices are preferably made of the material copper.
  • the power cable 39 is formed from a plurality of superimposed layers, in particular from three layers of Ablegeflechtes, and that the power cable 39 preferably has individual strands with a diameter of 0.1 mm.
  • control arm 38 is a so-called gooseneck, as it is known from the prior art, used, so that is dispensed with a detailed description of the structure.
  • actuating arms 38 from the company Boa AG Rothenburg or the company Flexperte www.flexperte.de under "Bendable arms" type: BA 15 ILL 1.
  • These actuating arms 38 are flexible and rigid at the same time and consist of a combination of inner round wire with an externally pressed in triangular wire coil.
  • the structure of the pipe bend 29 can be made in many different ways and previously only one possible variant has been described. It is only important that there is a mechanical separation for the stability and the current transmission, wherein the structure can for example also take place in such a way (not shown), that first a flexible guide tube for receiving a wire core for the
  • Welding wire 9 is arranged around which a highly flexible power cable 39 is laid and the guide tube and the power cable 39 are embedded in a consisting of steel and / or brass flexible actuator arm 38, ie that now all components within the Stell- poor 38 are arranged and in addition a guide tube is arranged in the center for the wire core.
  • a welding torch 7 comprising a burner holder, in particular a burner handle, and a pipe bend 29 fastened to it, the pipe bend 29 having a flexible connecting element 33 on which a nozzle 30 is provided for receiving a contact tube 31 and a gas nozzle 34, and that a mechanical separation for stability and current transmission is present, in which an actuating arm 38 for stably positioning the arcskomponent-, in particular a welding wire (9) or an electrode , is arranged around which a highly flexible power cable 39 is laid.
  • the central connection 39 is omitted at one end of the connecting element 33, this end then being fastened directly to the components in the welding torch 7, in particular in the grip shell or in the burner holder of the welding torch 7, ie, for example a component in the handle shell or burner holder a projection 40 or 43 is arranged, on which the power cable 39 and the actuator arm 38 can be attached.
  • the welding torch 7 can at the burner holder a central connection for connection to a
  • Hose package 21 may be arranged or that directly to the burner holder, in particular with the individual elements arranged therein, a hose package 21 is connected.
  • the welding torch 7 can also be produced by other construction variants, ie, for example, that the connecting element 33 is formed such that a mechanical separation for stability and power transmission is present by first a flexible guide tube for receiving a wire core for the welding wire 9, around which a highly flexible power cable 39 is laid and the guide tube and the power cable 39 are embedded in a steel and / or brass flexible steep arm 38.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

L'invention concerne un coude tubulaire flexible (29) pour un chalumeau soudeur, dans lequel sont disposés à une extrémité un porte-buse (30) pour recevoir un tube de contact (31) et une buse à gaz (34) et à l'autre extrémité opposée un raccord central (32) pour fixer le coude tubulaire (29) sur un porte-chalumeau, les deux extrémités étant reliées l'une à l'autre par un élément de liaison (33) flexible. L'élément de liaison (33) est conçu de manière qu'il y ait une séparation mécanique pour la stabilité et la transmission de courant, un bras de réglage (38) étant disposé pour le positionnement stable des composants d'arc électrique, notamment d'un fil de soudure ou une électrode, autour desquels un câble d'alimentation électrique hautement flexible (39) est placé. L'invention concerne également un chalumeau soudeur réalisé de manière correspondante.
PCT/AT2010/000287 2009-08-06 2010-08-06 Coude tubulaire flexible pour un chalumeau soudeur comprenant un bras de réglage conçu comme séparation mécanique; chalumeau soudeur avec un coude tubulaire flexible de ce type WO2011014900A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212010000057U DE212010000057U1 (de) 2009-08-06 2010-08-06 Flexibler Rohrbogen für einen Schweißbrenner mit einem als mechanische Trennung gebildeten Stellarm; Schweißbrenner mit solchem flexiblen Rohrbogen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT12452009A AT508570B1 (de) 2009-08-06 2009-08-06 Flexibler rohrbogen für einen schweissbrenner sowie schweissbrenner
ATA1245/2009 2009-08-06

Publications (1)

Publication Number Publication Date
WO2011014900A1 true WO2011014900A1 (fr) 2011-02-10

Family

ID=43086914

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2010/000287 WO2011014900A1 (fr) 2009-08-06 2010-08-06 Coude tubulaire flexible pour un chalumeau soudeur comprenant un bras de réglage conçu comme séparation mécanique; chalumeau soudeur avec un coude tubulaire flexible de ce type

Country Status (3)

Country Link
AT (1) AT508570B1 (fr)
DE (1) DE212010000057U1 (fr)
WO (1) WO2011014900A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013142887A2 (fr) 2012-03-30 2013-10-03 Fronius International Gmbh Raccords mâle et femelle servant à raccorder de manière démontable un coude d'un chalumeau de soudage refroidi par gaz à un faisceau de flexibles, et système de raccordement équipé de tels raccords mâle et femelle

Citations (7)

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Publication number Priority date Publication date Assignee Title
US2666832A (en) * 1947-05-22 1954-01-19 Lincoln Electric Co Combined welding head and flux hopper for continuous welding
US3755648A (en) * 1972-09-05 1973-08-28 J Rothman Flexible welding nozzle apparatus
US3999033A (en) * 1975-02-25 1976-12-21 Union Carbide Corporation Arc welding torch having a flexible wire guide assembly
JPS5564980A (en) * 1978-11-10 1980-05-16 Daihen Corp Welding torch
JPS5772780A (en) * 1980-10-24 1982-05-07 Matsushita Electric Ind Co Ltd Torch for welding
US5166496A (en) * 1991-11-25 1992-11-24 Delaware Capital Formation, Inc. Sheathed head assembly and process of making
WO2007146879A2 (fr) 2006-06-09 2007-12-21 Tweco Products, Inc. Tube conducteur flexible pour un pistolet de soudage

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US3703622A (en) * 1971-12-01 1972-11-21 Conley & Kleppen Ets Gas-shielded arc torch
JPS5832584A (ja) * 1981-08-19 1983-02-25 Matsushita Electric Ind Co Ltd 溶接用ト−チ
DE202006010358U1 (de) * 2006-07-04 2006-11-09 Buchner, Alfred Handschweißbrenner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666832A (en) * 1947-05-22 1954-01-19 Lincoln Electric Co Combined welding head and flux hopper for continuous welding
US3755648A (en) * 1972-09-05 1973-08-28 J Rothman Flexible welding nozzle apparatus
US3999033A (en) * 1975-02-25 1976-12-21 Union Carbide Corporation Arc welding torch having a flexible wire guide assembly
JPS5564980A (en) * 1978-11-10 1980-05-16 Daihen Corp Welding torch
JPS5772780A (en) * 1980-10-24 1982-05-07 Matsushita Electric Ind Co Ltd Torch for welding
US5166496A (en) * 1991-11-25 1992-11-24 Delaware Capital Formation, Inc. Sheathed head assembly and process of making
WO2007146879A2 (fr) 2006-06-09 2007-12-21 Tweco Products, Inc. Tube conducteur flexible pour un pistolet de soudage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013142887A2 (fr) 2012-03-30 2013-10-03 Fronius International Gmbh Raccords mâle et femelle servant à raccorder de manière démontable un coude d'un chalumeau de soudage refroidi par gaz à un faisceau de flexibles, et système de raccordement équipé de tels raccords mâle et femelle
AT512729A1 (de) * 2012-03-30 2013-10-15 Fronius Int Gmbh Steckerteil und Buchsenteil zur lösbaren Verbindung eines Rohrbogens eines gasgekühlten Schweißbrenners mit einem Schlauchpaket sowie Verbindungseinrichtung mit einem solchen Steckerteil und Buchsenteil
WO2013142887A3 (fr) * 2012-03-30 2013-12-27 Fronius International Gmbh Raccords mâle et femelle servant à raccorder de manière démontable un coude d'un chalumeau de soudage refroidi par gaz à un faisceau de flexibles, et système de raccordement équipé de tels raccords mâle et femelle
AT512729B1 (de) * 2012-03-30 2014-02-15 Fronius Int Gmbh Steckerteil und Buchsenteil zur lösbaren Verbindung eines Rohrbogens eines gasgekühlten Schweißbrenners mit einem Schlauchpaket sowie Verbindungseinrichtung mit einem solchen Steckerteil und Buchsenteil
US9636767B2 (en) 2012-03-30 2017-05-02 Fronius International Gmbh Plug part and socket part for detachably connecting a tube elbow of a gas-cooled welding torch to a hose packet, and connecting device with such a plug part and socket part

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Publication number Publication date
AT508570B1 (de) 2011-07-15
AT508570A1 (de) 2011-02-15
DE212010000057U1 (de) 2012-02-08

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